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@swift-5.5.3 public protocol BaseP { func foo() func bar() } public extension BaseP { func foo() { print("BaseP.foo()") } func bar() { print("BaseP.bar()") } } public protocol DerivedP: BaseP { override func foo() @_nonoverride func bar() } public extension DerivedP { func foo() { print("DerivedP.foo()") } func bar() { print("DerivedP.bar()") } } public struct Concrete: DerivedP { } func testBase<T: BaseP>(x: T) { x.foo() x.bar() } func testDerived<T: DerivedP>(x: T) { x.foo() x.bar() } testBase(x: Concrete()) testDerived(x: Concrete())
swift55 BOT 9/24/2021 5:39 PM
DerivedP.foo() DerivedP.bar() DerivedP.foo() DerivedP.bar()